How to use ListModel.get() method as it always returns QObject type?

[Diracsbracket]

Hi,
I am using a ListModel along with a delegate which is of the Grid base type to which I added custom properties and methods.

I want to access a particular Grid item at index N and thought I could use the ListModel.get(index) method.

However, as the get() method always seems to return type QObject, how can I use that return value? I cannot seem to be able to access any properties or methods on that object, as I always get the undefined error?

[mrjj]

Hi
Cant you just use qobject_cast to cast to your class type to access its properties ?

[GrecKo]

You want to access a particular ListModel row (defined by a ListElement) or a particular delegate?
What's your usecase and what did you try? Show us some code.

[Diracsbracket]

@mrjj
I need to access it in QML or JavaScript. When I use console.debug(myObject.toString()) the returned object type is QObject_XXXXXXXX but it is actually a Grid type element.

[mrjj]

Hi
Ok, i though it was the other way :) (on c++ side)
Sorry. I not sure how to cast in JS.

[Diracsbracket]

@GrecKo
The code I am currently trying to make it work with is simplified to the following:

ListView {
            id: view
             ...
            highlightRangeMode: ListView.StrictlyEnforceRange
            orientation: ListView.Horizontal
            snapMode: ListView.SnapOneItem

            model: ListModel {
                id: viewModel
            }

            function getPageAt(index)
            {
                console.debug(viewModel.get(index).toString())

                //I need this returned object to be of type Grid, as used in the delegate
                return viewModel.get(index)
            }

            delegate: Grid {
                visible: true
                property int dropCount: 0
                ...
                columns: gridColumns
                rows: gridRows
                ...

                Repeater {
                    model: grid.columns*grid.rows;

                    delegate: DropTile {
                        buttonSize: gridButtonSize
                    }
                }

                function getDropTargetAt(index)
                {
                    return children[index];
                }
               ...
        }

I need my custom attached function getPageAt(index) at to return the Grid instance at model index index, since I need to use an attached function on that Grid instance.

However, as my first post states, the get() method above returns an object of the type 'QObject_XXXXX'.

Note: I first implemented the above using a SwipeView instead of a ListView, and then it is easy to get the Grid instance using the standard itemAt(index) method of SwipeView. That app works (for example, the image below shows an example with a single SwipeView page(i.e. a Grid type element).

I only face the problem above because I want to use a ListView instead of a SwipeView as it seems I can achieve better control of the swipe vs. click behavior using a ListView.

In particular, I want to give the swipe action a higher priority than the press button, so that I can swipe between Grid (-pages) even if the swipe gesture is over a button, without triggering that button.

Currently, the press has priority it seems. (I am testing on a Windows, however, as it is intended for an Android touch device, I am not sure of the touch/click behavior yet).

I already did such a replacement of a SwipeView by a ListView as in another post of mine https://forum.qt.io/topic/89584/how-to-detect-a-press-on-a-swipeview/7.

[Diracsbracket]

@mrjj
No worries! Thanks, as always, for your kind help.